Mixer for viscous materials



FIG. 1 is a top perspective view of a mixer for viscous materials;

FIG. 2 is a front side view of the mixer;

FIG. 3 is a right side view of the mixer;

FIG. 4 is a rear view of the mixer;

FIG. 5 is a top view of the mixer; and,

FIG. 6 is a bottom view of the mixer.

The subject matter depicted in broken lines is not intended to be part of the claimed invention and is shown only for environment purposes. 

The ornamental design for a mixer for viscous materials, as shown and described. 